I don't understand what happened here... developer halved the POS rate and told no one?
Well, he told (NVC emphasis mine) almost a month in advance:
Truckcoin wallet v0.9.7.1 released - a mandatory update!
New features:
# On Thursday, 18 Dec 2014 20:23:23 GMT a hard fork will occur:
- PoS reward limit per block will be set to 200 TRK.
- NVC inflation control will be enabled.
- All clients below v.0.9.7 will be disconnected.
# Block money supply info added to block explorer
# -wallet option to specify wallet file - can be used as startup parameter -wallet=yourwalletfile.dat
# Total amount field added to overview page.
# HYP network interference fix.
# Unlock wallet option added to Wallet menu.
# -splitthreshold option - staking engine will not split blocks with size below splitthreshold amount. default 30 , max. 300
Can be used as command line option or setting in .conf file or can be set in Qt wallet gui in Settings > Options > Main
# -staking option to disable minting: staking=0 will disable pos minting.
I think the reason for the change is that noise is also working on TEK, where everybody is happy with NVCS, including some people disagreeing here.
Initially nobody complained, except for someone having problems syncing after the hardfork, until 10 days later or so, when they realized that NVC inflaction control means that the rate decreases.
After the hardfork the rate depends on the current difficulty following an algorithm developed first for Novacoin (hence the name) and right now it is 50% or so (type getmininginfo in the console and see "stakeinterest") instead of having a constant 200%.